<!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
  <title>覆盖物的添加与移除</title>
  <link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css" />
  <script src="https://cache.amap.com/lbs/static/es5.min.js"></script>
  <script type="text/javascript" src="https://cache.amap.com/lbs/static/addToolbar.js"></script>
  <style>
    html,
    body,
    #container {
      width: 100%;
      height: 100%;
    }

    label {
      width: 55px;
      height: 26px;
      line-height: 26px;
      margin-bottom: 0;
    }

    button.btn {
      width: 80px;
    }
  </style>
</head>

<body>
  <div id="container"></div>
  <div class="input-card" style="width:24rem;">
    <h4>添加、删除覆盖物</h4>
    <div class="input-item">
      <label>Marker：</label>
      <button class="btn" id="add-marker" style="margin-right:1rem;">添加Marker</button>
      <button class="btn" id="remove-marker">删除Marker</button>
    </div>
    <div class="input-item">
      <label>Circle：</label>
      <button class="btn" id="add-circle" style="margin-right:1rem;">添加Circle</button>
      <button class="btn" id="remove-circle">删除Circle</button>
    </div>
  </div>
  <script src="https://webapi.amap.com/maps?v=2.0&key=1011705e30f3f913fa46842db88f5dd0"></script>
  <script>
    var map = new AMap.Map('container', {
      resizeEnable: true,
      zoom: 11,
      center: [116.397428, 39.90923]
    });
    // 构造点标记
    var marker = new AMap.Marker({
      icon: "https://webapi.amap.com/theme/v1.3/markers/n/mark_b.png",
      position: [116.405467, 39.907761],
      anchor: 'bottom-center'
    });
    // 构造矢量圆形
    var circle = new AMap.Circle({
      center: new AMap.LngLat("116.403322", "39.920255"), // 圆心位置
      radius: 1000,  //半径
      strokeColor: "#F33",  //线颜色
      strokeOpacity: 1,  //线透明度
      strokeWeight: 3,  //线粗细度
      fillColor: "#ee2200",  //填充颜色
      fillOpacity: 0.35 //填充透明度
    });


    //事件绑定
    document.querySelector("#add-marker").onclick = function () {
      map.add(marker);
      map.setFitView();
    }
    document.querySelector("#remove-marker").onclick = function () {
      map.remove(marker);
      map.setFitView();
    }
    document.querySelector("#add-circle").onclick = function () {
      map.add(circle);
      map.setFitView();
    }
    document.querySelector("#remove-circle").onclick = function () {
      map.remove(circle);
      map.setFitView();
    }

  </script>
</body>

</html>